State Nexus Thresholds Freelancers Remote Work Decision Tree

How State Tax Nexus Works for Freelancers

State nexus thresholds freelancers remote work create legal obligations that determine whether a self-employed individual must file and pay income tax in a state where they do not live, based on the amount of income earned from sources within that state or the physical presence they maintain there.

State tax nexus is the legal connection between a taxpayer and a state that gives that state the authority to tax their income. For freelancers, nexus is typically established through physical presence — working from a home office, visiting clients, or attending conferences — or through economic activity, such as earning income from clients located in a state.

¹ The rules vary significantly. California requires nonresidents to file if they earn more than $18,600 in compensation or $104,300 in sales from California sources.² Illinois imposes a filing requirement on nonresident freelancers earning just $1,000 annually from Illinois sources.³

The consequence of misjudging nexus is exposure to penalties, interest, and back taxes. Suppose a freelancer earns $25,000 from a California client while living in Texas — a state with no income tax. They may still owe California tax if their activities cross the state's threshold.

Physical Presence vs Economic Nexus Explained

State nexus thresholds freelancers remote work follow two distinct pathways: physical presence and economic nexus. Physical presence nexus means a freelancer has a tangible connection to a state — a home office, a co-working space used regularly, or in-person client meetings. Economic nexus, by contrast, is triggered by the volume of business conducted in a state, regardless of physical location.

For freelancers, physical presence is the more common trigger. Working from a home office in New York for two months while visiting family creates nexus there. New York's "convenience of the employer" rule applies to employees, not independent contractors. Freelancers are generally subject to New York sourcing rules based on where services are performed, not the convenience rule.⁴

Economic nexus for income tax is less standardized. Some states, like Pennsylvania, set a $500,000 gross receipts threshold for annual nexus reporting.⁵ Others, like Illinois, use a much lower $1,000 threshold.³ The 2018 South Dakota v. Wayfair Supreme Court ruling established economic nexus for sales tax, with thresholds commonly set at $100,000 in sales or 200 transactions, but income tax nexus follows different rules.⁶

The $30K Rule of Thumb and Why It Misleads

Many freelancers rely on a $30,000 rule of thumb — the idea that earning less than that amount in a state means no filing requirement. This is incorrect and dangerous.

Consider a hypothetical freelance writer earning $35,000 annually from clients in three states. Under the $30K rule, they might assume no state filings are needed. In reality, Illinois requires a filing for any nonresident earning over $1,000 from Illinois sources.³ California's threshold is $18,600 in compensation.² The writer would owe returns in both states.

⁴ Each state sets its own nexus rules, and many use far lower dollar amounts.

A better approach is to look up the specific threshold for each state where a freelancer has clients or performs work. The table in the next section provides a starting point for common freelancer earnings levels.

State-by-State Threshold Comparison for Common Freelancer Earnings

The following table shows nexus thresholds for selected states, based on the type of income and the dollar amount that triggers a filing obligation.

For a freelancer earning, for example, $80,000 annually from clients in California and Illinois, the filing obligation is clear. California requires a return if compensation exceeds $18,600.² Illinois requires a return if income from Illinois sources exceeds $1,000.³ Both thresholds are crossed.

The table below shows how different earnings levels map to filing obligations across these states.

Decision Tree: Do You Have Nexus in State X?

Follow this decision tree for each state where a freelancer has clients or performs work.

Step 1: Does the state impose an income tax? If no — Texas, Florida, Nevada, and others — no filing is needed regardless of income. If yes, proceed to Step 2.

Step 2: Did you perform any work physically in the state? If yes — working from a home office, co-working space, or client site — physical presence nexus is established. Check the state's threshold for nonresident income. For example, California requires a filing if compensation exceeds $18,600.² Illinois requires a filing if income exceeds $1,000.³

Step 3: Did you earn income from clients located in the state without physically being there? If yes, economic nexus may apply. New York's convenience rule treats income from New York clients as New York-sourced, even if the freelancer works from another state.⁴ Check the state's economic nexus rules.

Step 4: Does your income exceed the state's threshold? Compare your earnings from that state to the threshold. If above, file a nonresident return. If below, no filing is needed.

Step 5: Document your conclusion. Keep a record of the state's threshold, your earnings from that state, and the date you performed the analysis. This documentation protects against future audits.

Multi-State Filing Mistakes Freelancers Make

The most common mistake freelancers make is assuming that living in a no-income-tax state exempts them from all state filings. A freelancer living in Texas who earns $50,000 from a California client may still owe California tax if their compensation exceeds $18,600.²

Another frequent error is failing to file in states with low thresholds. Illinois's $1,000 threshold catches many freelancers off guard.³ A freelancer who earns $1,500 from a single Illinois client and does not file risks penalties and interest.

A third mistake is misapplying the convenience rule. New York aggressively asserts that income from New York clients is New York-sourced, even if the freelancer works from another state.⁴ Freelancers who ignore this rule may face audits and back taxes.

Finally, freelancers often fail to track the number of days worked in each state. Physical presence nexus can be triggered by as little as one day of work in some states. Maintaining a travel log with dates, locations, and client names is essential.

Protecting Your LLC from Unexpected State Tax Exposure

An LLC does not shield a freelancer from state tax nexus. The LLC's income flows through to the owner's personal return, and nexus is determined by the owner's activities, not the entity's structure.

If a freelancer's LLC has clients in multiple states, the LLC may need to register as a foreign entity in those states and file annual reports. Some states, like California, impose an $800 annual franchise tax on LLCs regardless of income.² A freelancer with an LLC earning $30,000 from California clients would owe this tax even if their personal income falls below the compensation threshold.

To protect against unexpected exposure, freelancers should review their client list annually and identify states where they have physical presence or significant income. Registering the LLC in those states and filing the required reports avoids penalties.

Your Next Step

Pull up your current client list right now and identify every state where you have clients or performed work this year. For each state, check the nonresident income threshold — Illinois requires a filing above $1,000, California above $18,600 in compensation, and New York asserts nexus on income from NY-based clients under the convenience rule for employees only; for freelancers, nexus is based on physical presence or economic activity thresholds.²³⁴ If your income exceeds the threshold for any state, register and file before penalties accrue. PreFileCheck's state nexus analyzer maps your client locations to filing requirements in minutes.